Posted August 28, 2022Updated August 28, 2022Poor design for soldering fluxYou have to press too hard to get enough flux, the felt dries too quickly. solder at a great distance. In truth, don't buy these, buy Amtech syringes instead, the product is much better.ProsSoldering and soldering accessoriesConsExcessive priceΒ 0Β 0Β 0